Looking for an intelligent argument. (Terminal Velocity)

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Re: Looking for an intelligent argument.
« Reply #360 on: August 19, 2008, 01:24:00 PM »
So whats the point of calling it falling?

In my language:
Yes = a dishwashin soap
I = in
my = A name
are = Another name
is = ice
fall = case or rope to set sail with or to fall
not = note
dog = died
Ooompa ooompa

Re: Looking for an intelligent argument.
« Reply #361 on: August 19, 2008, 02:01:36 PM »
Bump... Still waiting on an answer

vt=sqrt(2*ae*m/(Cd*A*rho))

Where ae is the acceleration of the FE, m is the mass of the object, Cd is the coefficient of drag, A is the projected area of the object, and rho is the density of the medium

I can provide the derivation if you want it.  But your 'intellegence' should allow you to do it yourself.
Wrong, but good job showing the RE model. now if it is possible go ahead and show the FE model
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #362 on: August 19, 2008, 04:20:51 PM »
Wrong, but good job showing the RE model. now if it is possible go ahead and show the FE model
That is the FE model.   ???

You should be able to derive it very quickly.  As you said, "It's simple algebra."  Unless, of course, you can't do simple algebra. 

Let me know if it is too difficult for you to do and I will show you the derivation.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #363 on: August 19, 2008, 04:34:52 PM »
Wrong, but good job showing the RE model. now if it is possible go ahead and show the FE model
That is the FE model.   ???

You should be able to derive it very quickly.  As you said, "It's simple algebra."  Unless, of course, you can't do simple algebra. 

Let me know if it is too difficult for you to do and I will show you the derivation.
so you are saying that the object is accelerating in the opposite direction of the Air resistance in the FE model
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #364 on: August 19, 2008, 07:52:23 PM »
Uh, no.  Can't you do simple algebra?


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #365 on: August 19, 2008, 07:57:43 PM »
Uh, no.  Can't you do simple algebra?
Go ahead and so a free body diagram of the object in the air and then go ahean and show me how your net force can equal F=ma-R=ma, then we can discuss your algebra skills
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #366 on: August 19, 2008, 08:01:06 PM »
Net acceleration = 0.  Please learn how to do math and physics. 

Then maybe you can come play in my league, kid.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #367 on: August 19, 2008, 08:04:11 PM »
Net acceleration = 0.  Please learn how to do math and physics. 

Then maybe you can come play in my league, kid.
I am speechless at how unbelievably ignorant you are, I mean my god I actually am starting to feel sad for you.

Here let me help show me the free body diagram that you did and maybe we can find out where you went wrong
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #368 on: August 19, 2008, 08:05:36 PM »
Do the derivation.  It's simple, remember?  They do teach you to do simple reasoning in your middle school, right?


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #369 on: August 19, 2008, 08:10:19 PM »


Here you go now let us see the one you did that has the person acclerating toward the earth
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #370 on: August 19, 2008, 09:14:46 PM »
Here you go now let us see the one you did that has the person acclerating toward the earth
The person is not accelerating towards the Earth.  He is accelerating away from it.

Free body diagram:

    ^ Fd
    |
    |
Person


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #371 on: August 19, 2008, 09:23:00 PM »
Here you go now let us see the one you did that has the person acclerating toward the earth
The person is not accelerating towards the Earth.  He is accelerating away from it.

Free body diagram:

    ^ Fd
    |
    |
Person
So do you see your error yet?
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #372 on: August 19, 2008, 09:25:38 PM »
I have not made an error.  I'm still waiting for you to do the derivation, with your super awesome understanding of middle school physics.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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Parsifal

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Re: Looking for an intelligent argument.
« Reply #373 on: August 19, 2008, 09:28:16 PM »
So do you see your error yet?

I don't think there is an error for him to see.
I'm going to side with the white supremacists.

Re: Looking for an intelligent argument.
« Reply #374 on: August 19, 2008, 09:37:48 PM »
So do you see your error yet?

I don't think there is an error for him to see.
It is there.
Fd=ma
a needs to be zero so we get Fd=0
now solve for the Velocity and tell me what you get and how it compares to the RE model
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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Parsifal

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Re: Looking for an intelligent argument.
« Reply #375 on: August 19, 2008, 09:43:49 PM »
It is there.
Fd=ma
a needs to be zero so we get Fd=0
now solve for the Velocity and tell me what you get and how it compares to the RE model

Acceleration is zero when velocity is zero, as one would expect in both models.
I'm going to side with the white supremacists.

Re: Looking for an intelligent argument.
« Reply #376 on: August 19, 2008, 09:50:20 PM »
It is there.
Fd=ma
a needs to be zero so we get Fd=0
now solve for the Velocity and tell me what you get and how it compares to the RE model

Acceleration is zero when velocity is zero, as one would expect in both models.
exactly, now when is the velocity zero in the FE model (as in no acceleration)?
If you need help look at the engineers freebody diagram to help resolve the forces acting upon the body
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #377 on: August 19, 2008, 09:54:14 PM »

It is there.
Fd=ma
a needs to be zero so we get Fd=0
now solve for the Velocity and tell me what you get and how it compares to the RE model
Acceleration is not zero.  I guess I gave you way too much credit in assuming you could derive the equation.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #378 on: August 19, 2008, 09:54:57 PM »
If you need help look at the engineers freebody diagram to help resolve the forces acting upon the body
Perhaps you should take your own advice and realize your error.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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Parsifal

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Re: Looking for an intelligent argument.
« Reply #379 on: August 19, 2008, 09:57:41 PM »
exactly, now when is the velocity zero in the FE model (as in no acceleration)?
If you need help look at the engineers freebody diagram to help resolve the forces acting upon the body

The velocity is zero when the person is not moving relative to the air.
I'm going to side with the white supremacists.

Re: Looking for an intelligent argument.
« Reply #380 on: August 19, 2008, 09:58:23 PM »
exactly, now when is the velocity zero in the FE model (as in no acceleration)?
If you need help look at the engineers freebody diagram to help resolve the forces acting upon the body

The velocity is zero when the person is moving at the same speed as the air.
and what is the air always doing according to the FE model?
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #381 on: August 19, 2008, 10:06:40 PM »

It is there.
Fd=ma
a needs to be zero so we get Fd=0
now solve for the Velocity and tell me what you get and how it compares to the RE model
Acceleration is not zero.  I guess I gave you way too much credit in assuming you could derive the equation.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

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Parsifal

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Re: Looking for an intelligent argument.
« Reply #382 on: August 19, 2008, 10:07:06 PM »
and what is the air always doing according to the FE model?

Accelerating upwards at 9.8 m s-2.
I'm going to side with the white supremacists.

Re: Looking for an intelligent argument.
« Reply #383 on: August 19, 2008, 10:09:39 PM »
and what is the air always doing according to the FE model?

Accelerating upwards at 9.8 m s-2.
So is it your contention that the FE model shows that terminal velocity is whatever force is required to accelerate the body to 9.8m/s/s?
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #384 on: August 19, 2008, 10:10:47 PM »
Bump... Still waiting on an answer

vt=sqrt(2*ae*m/(Cd*A*rho))

Where ae is the acceleration of the FE, m is the mass of the object, Cd is the coefficient of drag, A is the projected area of the object, and rho is the density of the medium

I can provide the derivation if you want it.  But your 'intellegence' should allow you to do it yourself.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #385 on: August 19, 2008, 10:13:32 PM »
Bump... Still waiting on an answer

vt=sqrt(2*ae*m/(Cd*A*rho))

Where ae is the acceleration of the FE, m is the mass of the object, Cd is the coefficient of drag, A is the projected area of the object, and rho is the density of the medium

I can provide the derivation if you want it.  But your 'intellegence' should allow you to do it yourself.
The stupidity there is so great that I am not sure if I should laugh at you or buy you a helmet, like you said this is very very basic physics. but of course wiki may not cover this subject too much so I guess that it is no suprise you are failing to grasp the way a freebody diagram works, or how to resolve forces or how to properly derive an equation based upon those figures
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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Parsifal

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Re: Looking for an intelligent argument.
« Reply #386 on: August 19, 2008, 10:16:48 PM »
So is it your contention that the FE model shows that terminal velocity is whatever force is required to accelerate the body to 9.8m/s/s?

Velocity is not a force. Please reword your post such that you are not equating two completely different physical quantities.
I'm going to side with the white supremacists.

Re: Looking for an intelligent argument.
« Reply #387 on: August 19, 2008, 10:19:22 PM »
So is it your contention that the FE model shows that terminal velocity is whatever force is required to accelerate the body to 9.8m/s/s?

Velocity is not a force. Please reword your post such that you are not equating two completely different physical quantities.
so is it your contention that you are no longer accelerating once you reach an acceleration of 9.8m/s/s so your terminal velocity would be based upon the time that you accelerated
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.

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TheEngineer

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Re: Looking for an intelligent argument.
« Reply #388 on: August 19, 2008, 10:19:28 PM »
But I did properly derive my equations.  I did do a free body diagram.  I derived the formula specific to the situation in the FE.  It was quite simple.  The fact that you can not derive it tells me quite a bit.  Like I said before, all you have to do is ask me for help and I will provide you with the derivation.  I can probably even get it down to a middle school level for you.


"I haven't been wrong since 1961, when I thought I made a mistake."
        -- Bob Hudson

Re: Looking for an intelligent argument.
« Reply #389 on: August 19, 2008, 10:21:01 PM »
But I did properly derive my equations.  I did do a free body diagram.  I derived the formula specific to the situation in the FE.  It was quite simple.  The fact that you can not derive it tells me quite a bit.  Like I said before, all you have to do is ask me for help and I will provide you with the derivation.  I can probably even get it down to a middle school level for you.
look at you freebody diagram again then try and derive that equation again without adding in features that are non existent in you diagram or rework your diagram to account for all of the features in your final equation
Only 2 things are infinite the universe and human stupidity, but I am not sure about the former.